Tag: laser module

Laser system that allows detecting enemies by their heartbeat

It is a well-known fact that every person on the Earth is unique, that is why they have unique fingerprints and even a unique heartbeat. This unique characteristic has become a concept to the US military’s newest identification device based on the laser system.

To be more precise, the US Department of Defense uses laser system technology to design an infrared laser module that allows detecting enemy combatants from a distance by scanning their heartbeats. The principle of the laser system device is based on the process of laser vibrometry or non-contact vibration measurements to identify the movement of the surface evoked by a person’s heartbeat.

It should be noted that the improved laser technology is not a novel one, the laser device is the development of the existing technology that includes the use of already available tools for measuring vibrations in distant structures such as wind turbines. The researchers from the US Department of Defense confirm that the designed laser system can penetrate clothing and reach a positive detection about 95% of the time from up to 200 meters (650 feet) away, herewith, the presented laser technology is not limited and can be extended in the nearest future.

Of course, the opportunity to use such a laser device from space remains unreal but longer distances are possible. Additionally, this laser technology is considered to be still in its early stages because the laser system is not able to penetrate thick clothing yet and it is required that a person sit or stand in one place for it to operate (about 30 seconds for reading begins).

One more challenge is the necessity to create a cardiac signature database as well as other various biometric identification techniques ranging from facial recognition to retinal scans. Despite the fact that this laser product is not ideal and requires some improvements, cardiac signature identification provides more benefits than some conventional identification techniques, so it is impossible to change someone’s heartbeat as face or fingerprints can.

It was planned to combine the laser technology with other identification techniques creating a possibility to measure the unique characteristic of cardiac signatures at a distance, thus, the laser system offers additional biometric identification when environmental conditions and changes in facial appearance remain inefficient.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its own technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

Laser Systems emit terahertz radiation for the U.S. army

A team of researchers from Boston has developed a new terahertz radiation source with coveted frequency adjustment capability based on quantum cascade laser systems (QCL). Such a laser system has a compact size and it allows the development of futuristic communications, security, biomedical, and astronomical imaging systems.

It should be noted that terahertz electromagnetic frequencies emitted by fiber lasers have been widespread for their range of applications because these laser systems offer such advantages as high bandwidth, high resolution, long-range sensing, and the ability to visualize objects through materials. Nevertheless, the costliness, bulk, inefficiencies, and lack of tunability of traditional terahertz laser beam sources have limited growing markets.
Thus, this new combined terahertz laser beam emitter promotes future technologies from T-ray imaging in airports and space observatories to ultrahigh-capacity wireless connections. To be more precise, current fiber laser systems are considered to have limited tunability (less than 15 to 20% of the main frequency), that is why terahertz radiation is rarely used.

The researchers confirm that the new laser system helps open up this spectral region resulting in a revolutionary impact. The laser technology is based on a compact tunable semiconductor laser system, the quantum cascade laser (QCL) that is frequently used for chemical sensing and trace gas analysis. The thing is that the QCL laser system emits mid-infrared light, herewith, in this spectral region, most gases (low concentrations of molecules) can be determined by their specific absorption fingerprints.

According to researchers, “Terahertz waves could be emitted with high efficiency from gas molecules held within cavities much smaller than those currently used on the optically pumped far-infrared (OPFIR) laser system — one of the earliest sources of terahertz radiation”.

Nevertheless, the OPFIR laser systems are similar to all traditional terahertz laser beam sources, that is why they are regarded as inefficient with limited tunability. The change of the OPFIR laser on the quantum cascade laser system significantly increases the terahertz tuning range, therefore, the developed laser module has wider tunability now.

This laser system has been already tested and demonstrates the opportunity to tune the terahertz output to emit 29 direct laser beam transitions between 0.251 and 0.955 THz. The laser technology is universal, and it can be used to detect different gases. It is planned to use the developed laser system to observe skyward and determine unknown spectral features in the terahertz region.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

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Laser Beam diodes create deep-UV light

A team of scientists from Japan has manufactured a laser beam diode that allows emitting deep-ultraviolet light. To be more precise, the developed laser system can produce the shortest laser beam wavelength in the world, it is only 271.8 nm under pulsed current injection at room temperature.

It should be noted that previous versions of similar fiber lasers succeeded to achieve emissions only down to 336 nm. The potential applications of the new laser system include disinfection in health care, treating skin conditions, for instance, psoriasis, and analyzing gases and DNA.

The base of the fiber laser system is made of a high-quality aluminum nitride (AlN) substrate that enables to escape of the limitations connected with lower quality AlN. The thing is that the AIN quality is considered to influence the efficiency of a fiber laser diode’s active layer in converting electricity into laser beam light energy.

The team confirms that a quantum well separates p-type and n-type layers in the laser system. The operating principle of the developed fiber laser is based on “electric current that is passed through a laser beam diode, and positively charged holes in the p-type layer and negatively charged electrons in the n-type layer flow toward the center to combine, releasing energy in the form of photons.”

Thus, scientists have developed the quantum well for the fiber laser so that it could produce deep UV light. The p- and n-type layers consist of aluminum gallium nitride (AlGaN). Herewith, every side of the p- and n-type layers in the laser system are surrounded by cladding coatings made of aluminum gallium nitride as well. The cladding is produced by using the process of doping.

Doping is regarded as a way that changes a material’s properties. The team also claims that the aluminum gradient of laser beam diodes increases the flow of positively charged holes. Finally, it was discovered that the technique of the polarization doping of the p-side cladding layer implied that a pulsed electric current of “remarkably low operating voltage” of 13.8 V in the fiber laser system was required for the emission of the UV wavelength.

Nowadays the team of scientists plans to perform advanced joint research to reach continuous room temperature deep-UV lasing for the production of UV-C semiconductor laser system products that can greatly improve the current benefits leading to the appearance of new promising applications in various areas.

If you are looking for a compact highly efficient laser system, the Optromix company is ready to manufacture it. Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high-powered fiber lasers, and other types. We offer simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry.

Moreover, our fiber lasers are exceptionally light and compact and can be embedded in other devices or used in mobile applications. Our company offers single-mode Erbium lasers and Ytterbium lasers as well as single-frequency fiber lasers (similar to DFB lasers), wavelength-tunable fiber lasers systems, and unique DUV fiber laser system.

We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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Fiber Lasers and technologies for military use

Laser beam weapons have long ceased to be an element of sci-fi culture, and every year fiber technology more and more firmly takes its place in military application. Of course, high-power laser systems that can cut starships and buildings into parts have not yet been invented, but many modern fiber lasers still deserve special attention. We will talk about them today.

1. Lockheed Martin company is a manufacturer of a combat laser module whose laser beam power can be increased by simply adding new emitters. In April 2014, the company produced and tested a 60-kilowatt fiber laser for military purposes. Herewith, its installation in the future will be part of the combat HEL MD.

2. The American company Boeing produces not only aircraft but also laser beam weapons for detecting missiles. The laser system installed on the Boeing YAL-1 aircraft is considered to be a chemical laser that is capable of destroying missiles and mortar shells at a distance of up to 1.5 km, even in challenging weather conditions.

3. Fiber laser Design Bureau of Precision Engineering named. Nudelman is a weapon designed to deactivate optical devices and manpower of the enemy. The laser system operates as a scanner: the laser beams emitted in a spectrum invisible to the human eye scan a potentially dangerous area. As soon as an enemy optical device enters the field of view of a fiber laser system, it is hit by a laser. It should be noted that such a system can strike not only the optics themselves but often the eyes of the observer.

4. Another creation of Boeing is designed to destroy drones, which have become increasingly popular over the past couple of years. A compact laser module offers the ability to make damage on individual parts of an unmanned module (which can be useful if the enemy device does not need to be destroyed but captured), although it can only be installed on fixed surfaces.

5. The Israeli laser system made by Advanced Defense Systems was created with the aim of hitting artillery shells in flight. It is capable of destroying short-range missiles, mortar mines, and shells using a laser beam. This fiber laser can be used against ammunition at a distance of up to 7 kilometers.

Devices emitting laser beams are used mainly against high-speed shells or optical systems of the enemy. Thus, a laser system is one of the most reliable ways to bring down an enemy rocket or mine while still approaching, which allows negating its damaging effects. However, the use of laser systems as a mass attack weapon is just around the corner – few devices can be compared in strength to powerful emitters, and as soon as humanity can solve the problem of a reliable source of energy that will feed the machines in the field, a new era of military technology will begin.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

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Fiber lasers have a fully tunable beam

The newly developed high-powered fiber laser provides real-time tuning of the laser beam characteristics directly from the output optical fiber using a fiber optic system. Laser systems have become indispensable tools for material processing, production, detection, protection, and scientific applications.

This success is based on improved laser performance in several areas, including average and peak power, wavelength range, timeline flexibility (pulse duration and frequency, complex signals), efficiency, power stability, long-term reliability, maintenance, and operational requirements costs.

High-powered fiber lasers were especially important for implementing some of these achievements and currently dominate in many areas of industrial production and microprocessing. In addition to the efficiency and reliability inherent in fiber lasers, fiber laser systems generally provide fiber delivery to the processing head, minimizing the load on the fiber optics in free space in the laser and the machine.

The opportunity to tune a laser beam is important, for example, when cutting metal (the largest industrial application), so a low-power beam with relatively high radiation quality provides the highest speed for thin material, but the maximum thickness is limited by the resulting narrow cut, which prevents melt removal.

A more powerful and more divergent laser beam (lower beam quality) allows cutting a thicker sheet with a corresponding reduction in speed compared to a thin sheet. During welding with high beam quality laser, welds with a “deep penetration channel” are formed, while larger spots with lower laser beam quality create shallow welds in the heat conduction mode, aesthetic welds on thin parts.

Besides, the specific shape of the beam affects the heat transfer and temperature gradients in the workpiece. Unlike a Gaussian beam, a flat-topped laser beam can prevent over or under processing by providing uniform radiation, and ring beams are known to improve processing quality in some applications.

Most laser systems provide the fixed characteristics of the beam. The laser beam can be converted to a different format using refractive or diffractive fiber optic systems. Fiber laser systems with a fixed beam can operate only in a limited range of processes or materials and thus, suffer from reduced productivity or limits.

Customizable laser beam characteristics would be highly desirable to ensure process optimization and tool versatility. Various approaches have been developed that provide a certain level of beam tuning, including zoom lenses, switchable diffractive optical elements, deformable mirrors, laser beam combiners, and (for fiber laser systems with a fiber radiation transport system) optical fiber connectors and switches with a motorized optics.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

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Extreme sound features of fiber laser systems

Diamond is regarded as a predominantly interesting material for this type of laser system for several main reasons. The thing is that it offers high thermal conductivity that promotes the development of compact fiber laser systems that have such features as high stability and high power. Herewith, such fiber laser has also a much higher level of sound speed compared to other materials. Therefore, new laser systems enable directly synthesize frequencies in the hard-to-reach millimeter-wave band.

A team of researchers demonstrates that the laser beam light-sound interaction is predominantly strong in diamonds, also they develop the first bench-top Brillouin laser system that applies diamonds. It should be noted that the result is awesome, the thing is that the new fiber laser offers a highly practical technique with a greatly increased range of performance. Compared to previous versions, the laser system with a diamond can operate without having to limit the optical or sound waves in a waveguide to increase the interaction.

To be more precise, it is easier to scale such fiber laser systems in size, they have much greater flexibility for monitoring the laser beam features as well as increasing power. Diamond opens new possibilities to use the unique features of Brillouin laser systems. Additionally, the fiber lasers result in numerous properties containing laser beam generation with ultra-pure and stable output frequency, the creation of new frequencies, and potentially, laser systems with exceptionally high efficiency.

The researchers confirm that the developed laser technology offers a new way to high-powered fiber lasers that are significantly efficient and have unique frequency features, for instance, low-phase noise and narrow linewidth. Such laser beam features play a crucial role in applications that require the highest standards of noise-free frequency properties, for example, ultra-sensitive detection of gravitational waves or manipulating large arrays of qubits in quantum computers.

Moreover, the diamond in laser systems allows synthesizing very clear frequencies beyond the microwave band. Thus, “as a consequence of the very high speed of sound in diamond—a dashing 18 km/s—the frequency spacing between the input pump laser beam and the laser line is many times higher than in other materials.” It is possible to produce frequencies in the millimeter-wave band (30-300 GHz) employing a technique called photo-mixing.

Finally, the fiber laser technology quantifies the strength of the light-sound interaction in diamond, a crucial parameter for predicting future design and performance resulting in the creation of a practical tool with over 10 W of laser beam power. Also, it is planned to expand the laser system abilities by offering fiber lasers with higher levels of frequency clarity and laser beam power required to maintain future progress in quantum science, wireless communications, and sensing.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

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Fiber lasers stand guard over your eyes

A cataract is considered to be one of the most prevalent eye diseases. It should be noted that about one-third of all visual impairments are linked to cataracts. Despite the treatment methods are highly popular, most of them can be traumatizing at times apart from fiber laser technology.

Nowadays researchers continue working on the reduction of the side effects linked to cataract surgery. Therefore, new laser technology based on a fiber laser has been developed to activate the regeneration of adjacent tissue and also to get rid of the clouded-eye lens.

It is not new that the eye is regarded as the most vital organ. It enables seeing in the dark and in the light, trace fast objects and read the fine print. Nevertheless, problems with eyes lead to quick degradation of the eyesight or even its total disappearance.

The fiber laser technology promotes the treatment techniques for cataract and their increase. The treatment technique is based on surgery by laser systems that allow removing the clouded eye lens and replacing it with an artificial one made of plastic or sapphire due to high power laser beam.

Thus, the eye lens is crashed either with ultrasound or a fiber laser system. The operating principle of the fiber laser treatment is based on the application of the laser system where “a special tip is inserted into the anterior chamber of the eye close to the lens, and the laser beam breaks the lens into tiny fragments that are then removed from the eye. An artificial lens is then put in their place.”

Nevertheless, laser technology has some challenges that are the process damages the adjacent tissue, and the regeneration doesn’t always go well. In the past years, several research teams have been trying to reduce the traumatizing impact of cataract surgery, and the application of laser beam radiation to crash the cataract is considered to be promising.

It should be noted that the less powerful laser system not only lights up the surgical field but also triggers the regeneration of the impaired tissue. Therefore, new tests have been conducted in order to determine the best interaction way between the illuminating and the destroying fiber lasers.

Finally, the researchers claimed that the most efficient way is to apply both fiber laser systems concurrently. The fiber laser technology requires extensive work from optical engineers because it is impossible to penetrate the eye with two devices simultaneously due to the laser beam radiation.

The thing is that the simultaneous application of two laser systems is perfect because doctors obtain cells that are damaged however not crashed. The stimulation of their generation at once plays a crucial role. This is because the regeneration takes place in the most favorable conditions.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

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The operation of fiber lasers

A fiber laser is a powerful device for the production of single-mode radiation with the highest possible performance and quality characteristics. Fiber optic systems for processing materials occupy about one-fourth of the entire laser market.

It should be noted that the diameter of the fiber laser system has micro values, so the laser beam allows for cutting out sharp corners and other complex shapes with absolute accuracy, even in a sheet of metal with high hardness and large thickness.

The beam formed by a fiber laser is designed primarily for working with metal surfaces, so the fields of application include automobile, ship and rocket engineering, manufacturing of sea containers and railway cars, machine tool construction, robotics, marking and engraving, and the military-industrial complex.

In addition to metals, the fiber laser is perfect in working with stone, glass, and some types of plastic, so it is also used in those industries that massively use these materials (for example, the advertising industry, some types of construction work, etc.).

The priority in using solid-state equipment (fiber lasers belong to this category) over any other systems is explained by a large number of economic and qualitative advantages, which are the following:

positioning accuracy at all speed modes;
high power;
excellent laser beam quality with minimal transmission loss and small angular divergence;
multi-function: laser systems can not only cut, engrave and perforate materials, but also solder or perform welding, and cleaning of surfaces from any type of contamination;
compact size, easy transportation;
silent operation and almost complete absence of industrial waste.

The fiber laser system consists of two main parts: pump lamps (semiconductor diodes) and fiber optic cable. A light-conducting optical fiber with a core of transparent quartz doped with rare earth elements is inside the cable (this is ytterbium in most machines used in industry).

At the ends of the central rod, a fiber Bragg grating (FBG) is most often performed. The notched sections have a modified reflectivity and act as resonators, reflecting light propagating along the optical fiber and maintaining the desired wavelength. The laser beam retains its monochrome and other quality characteristics thanks to them.

Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high-powered fiber lasers, and other types. We offer simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry.

We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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The new vertical-cavity surface-emitting laser system

A team of scientists from the U.S. has demonstrated a new design of a vertical-cavity surface-emitting laser system that provides record-fast temporal bandwidth. The developed fiber laser technology is based on the combination of numerous transverse coupled cavities that increases the optical feedback of the fiber laser.

It should be noted that the new laser system plays a crucial role in the production of energy-efficient and high-speed optical interconnects in data centers and supercomputers. To be more precise, vertical-cavity systems are a class of semiconductor laser beam diodes combined with a monolithic resonator that produces laser beam light in a direction perpendicular to the chip surface.

Herewith, this type of fiber laser systems becomes more popular thanks to its advantages such as compact size and high optoelectronic performance. For instance, compact laser systems can be applied as “an optical source in highspeed, short-wavelength communications, and optical data networks.”

Additionally, small fiber lasers find applications in automotive or data communications to detect dense traffic and high-speed transmission. Nevertheless, the current fiber laser system has its speed limitation such as the 3-dB bandwidth. Moreover, such parameters as thermal effects, parasitic resistance, capacitance, and nonlinear gain effects also influence the laser.

The thing is that the direct modulation of this fiber laser system cannot be higher than 30 GHz because of the nonlinear optical amplification phenomenon. Nonetheless, the new fiber laser technology has a revolutionary novel design for lasers. The used multi-feedback technique that unites numerous coupled cavities allows for carefully direct and control of the laser beam. Therefore, the researchers can increase the strength of the feedback and expand the temporal laser beam speed leading to overcoming the current limitations.

The fiber laser technology is novel. Now the direct feedback from each cavity is required to be moderate and then the researchers can direct them accurately via the coupled cavities resulting in more design freedom of laser systems. They also claim that new modulation bandwidth can achieve the 100 GHz range.

Thus, the design of fiber lasers has greatly changed. The novel coupled cavities enable to carefully monitor the feedback to the laser system reached by greatly slowing the laser beam light down. Moreover, now it is possible to produce lasers of various designs for particular applications in both fundamental science and technology due to this technique. The new applications of this fiber laser system include the automotive industry where the laser beam acts as a proximity sensor or the smartphone’s face ID, as well as the use for quantum information processors such as coherent Ising machines.

We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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Ultrafast fiber laser system for biomedicine

A team of scientists from India has demonstrated its new ultrafast yellow fiber laser system that has a compact size and generates high-power laser beams. It is possible to adjust the laser system that in turn provides perfect laser beam quality, resulting in the creation of a practical yellow light source generating ultrafast laser beam pulses.

To be more precise, fiber lasers with the yellow spectral range are considered to be very useful for definite medical procedures. Nevertheless, their wavelengths are generally produced by applying large and inefficient copper vapor laser systems, dye lasers, and optical parametric oscillators.

Even though their application is wide, they have great disadvantages, for instance, “low level of average power, the lack of an optimal spatial laser beam profile, limited or no wavelength tunability, and broad output pulses.” The conversion of mid-infrared laser beam light into yellow one requires a two-step nonlinear frequency change, therefore, it can be adjusted from 570 to 596 nm.

Herewith, such a wavelength range emitted by the fiber laser is regarded as a very potential for a variety of applications. This fiber laser system shows a reliable, high-power, ultrafast, adjustable yellow emission in a rather simple experimental configuration.

Additionally, the applications of such fiber laser technology include not only biomedicine but also full-color video projection and other numerous spectral fields thanks to a sought-after laser beam wavelength range. Nonlinear frequency conversion allows for changing mid-infrared laser beam light into yellow one that can be adjusted from 570 to 596 nm.

It should be noted that fiber lasers play a crucial role in numerous applications because they produce numerous photons in a short period to offer high-intensity levels and accuracy without arousing thermal damage. Moreover, nowadays there is no commercially available yellow laser system that offers the required parameters, and that would stand to gain from that wavelength range.

The use of ultrafast fiber lasers enables scientists to overcome the current limitations in a single experimental configuration. The laser beam frequency of the ultrafast mid-infrared laser system with a peak wavelength has been doubled in two various nonlinear crystals, herewith, the scientists employed not complex fiber optic components available in any conventional laboratory to reach a high-power, adjustable, ultrafast yellow fiber laser source.

The fiber laser system has been already tested and offered tunable ultrafast laser beam emission with significant average power promising for different applications, involving spectroscopy, material processing, and imaging. The laser system’s operation demonstrates high stability over a long duration.

If you are looking for a compact highly-efficient laser system, the Optromix company is ready to manufacture it. Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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